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How to determine if a number is a prime with regex?
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I will explain the regex part outside of primality testing: the following regex, given a String s which consists of repeating String t, finds t.
System.out.println(
"MamamiaMamamiaMamamia".replaceAll("^(.*)\\1+$", "$1")
); // prints "Mamamia"
The way it wor...
Real-world examples of recursion [closed]
... their contacts in the last week, marking each contact on a heap. When you test a person is infected, add them to the "follow up" queue. When a person is a type B, add them to the "follow up" at the head ( because you want to stop this fast ).
After processing a given person, select the person fro...
Passing a string with spaces as a function argument in bash
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Simple solution that worked for me -- quoted $@
Test(){
set -x
grep "$@" /etc/hosts
set +x
}
Test -i "3 rb"
+ grep -i '3 rb' /etc/hosts
I could verify the actual grep command (thanks to set -x).
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Selecting last element in JavaScript array [duplicate]
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I added a test case where you call .pop() and .push() consecutively. Seems to be 10x faster than .slice(-1)[0] but still 10x slower than direct access.
– mjois
Jan 5 '16 at 3:37
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What do “branch”, “tag” and “trunk” mean in Subversion repositories?
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Tags directory is also often used for milestones testing and verification by the regular user. This would be a good place to put a prototype too (just some ideas on top of my head).
– Jeff Noel
Oct 26 '12 at 7:09
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How do I get the current username in Windows PowerShell?
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Works as expected. Tested for url address reservation.
– Marek Bar
Jul 6 '18 at 8:36
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What is the best way to conditionally apply attributes in AngularJS?
...roach should work for other attribute types.
(I think you need to be on latest unstable Angular to use ng-attr-, I'm currently on 1.1.4)
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Preserve line breaks in angularjs
... comparison of the different rendering modes: http://meyerweb.com/eric/css/tests/white-space.html
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Are there console commands to look at whats in the queue and to clear the queue in Sidekiq?
... out above, these examples are outdated; as mkirk pointed out below, the latest docs w/examples are on the wiki: github.com/mperham/sidekiq/wiki/API
– odigity
Aug 18 '14 at 14:59
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How to prevent ENTER keypress to submit a web form?
...ling]
function checkEnter(e){
e = e || event;
var txtArea = /textarea/i.test((e.target || e.srcElement).tagName);
return txtArea || (e.keyCode || e.which || e.charCode || 0) !== 13;
}
Now you can define a keypress handler on the form:
<form [...] onkeypress="return checkEnter(event)">
d...